Leaf Beetle Biodiversity in the Low Arieş River Basin (Coleoptera: Chrysomelidae)

Entomol.rom., 10: 43-52, 2005 ISSN 1224 - 2594

Leaf beetle biodiversity in the low Arieş river basin (Coleoptera: Chrysomelidae)

Alexandru Crişan & Lucian Teodor

Rezumat:

Biodiversitatea crizomelidelor (Coleoptera: Chrysomelidae) din bazinul inferior al Arieşului

Într-un studiu efectuat pe parcursul anului 2004 asupra crizomelidelor, în principalele ecosisteme naturale din 8 localităţi din zona bazinului inferior al Arieşului, s-au identificat 106 specii din 31 de genuri şi 7 subfamilii. Au dominat speciile de Longitarsus şi Cryptocephalus, au fost de asemenea bine reprezentate genurile Phyllotreta, Cassida şi Chrysolina, iar cele mai multe genuri au fost reprezentate prin doar 1-2 specii. Dintre subfamilii, au dominat Alticinae şi Chrysomelinae, iar Cryptocephalinae a fost de asemenea mai bine reprezentată. S-au evidenţiat de asemenea un număr de 21 de specii de crizomelide care pot fi considerate rare , cu statut de periclitate.

Keywords: leaf-beetles, biodiversity, low Arieş river basin

There are known relative few scientific data the protected areas (Cheile Turzii, Cheile Turului), about leaf-beetle fauna in the Romanian regions areas that were analised concerning leaf- beetle fau- (Fleck, 1905; Petri, 1912; Marcu, 1927, 1928, na in previous papers. The forests of the low Arieş 1936, 1957; Panin, 1951; Konnert-Ionescu, 1963; river basin are characterised by different species of Ieniştea, 1968, 1974, 1975; Negru, 1968; Negru & foliaceous trees (Carpenus betulus, species of Quer- Roşca, 1967; Roşca, 1973, 1974, 1976, Ilie, 1999; cus, Fagus sylvatica, Uhlmus champestris etc.). Gruev et all., 1993; Maican & Serafim, 2001). For Trees are also present along the river valley (mostly Transylvania, and mostly for “Apuseni” Mountains, species of Salix and Alnus) and along the tributary leaf-beetle informations are also very rare (Se- vallies of the low Arieş river: Trascău Vally, on idlitz, 1891; Petri, 1912; Konnert-Ionescu, 1963; the right side, and Hăşdate Valley, Racilor Valley, Roşca 1973, 1974; Szel et all.,1995). Starting 1992, Larga Velley, on the left side. Shrubs and bushes of we initiated studies on leaf-beetles in different re- Rosa canina, Prunus spinosa, Evonymus europeus, gions of the country, and mostly in Transylvania Viburnum lantana, Corylus avellana, Lygustrum (Crişan,1993a, 1993b, 1994, 1995a, 1995b; Crişan vulgare, Rubus caesius, Clematis vitalba etc are also & Teodor, 1996a, 1996b, 1998; Crişan & Bonea, spread in the lawns and pastures. These areas, not or 1995; Crişan & Druguş 2001; Crişan et all., 1998, few influenced by the human activities, constituted 1999a, 1999b 2000). the places in which we took samples, nearby any In 2004, as a continuation of previous stud- localities of the zone: Rimetea, Moldoveneşti, ies (Crisan &Teodor, 2003; Crisan et all., 2004), Mărtineşti, Luna, Luncani, Gligoreşti, Hădăreni, we undertook studies on leaf beetle biodiversity in Gura Arieşului. the low Arieş river basin, starting with Trascau Val- ley (the area nearby Rimetea village) to the Arieş Material and method river mouth (Gura Arieşului). The low Arieş river basin, on the whole, is situated in the “Transylva- We took samples and made observations in nian plain”; a geographical formation characterized the following points and habitats: by many hills and extended terraces. The greatest 1. Rimetea, locality situated on Trascău Val- part of the zone is occupied by agricultural terrains, ley, at about 5 km. far from the valley mouth. with different crops and orchards. Some forests are - a. a mezohygrofilous lawn, situated in the also present, mostly in the first part of the low Arieş Aries river meadow area, just to the Trascau valley river basin (Rimetea-Moldovenesti area) and also in mouth. 43 - b. the Trascău meadow area along the 5. Luncani, locality in which we also under- valley, with species of Salix and Alnus, and also took researches in the meadow, on the right side of with hygrophilous herbaceous vegetation. the Arieş river: - c. a mezophilous lawn, situated upstream - a. a Salicetum association , dominanted by the Rimetea village on a South-Eastern exposed species of Salix, having a hygrophile herbous rug slope. with: Typha, Trifolium, Ononis, Centaurea and Ur- - d. a mezoxerophilous lawn at high altitude, tica, species; situated nearby „Colţii Secuiului”, a mountainous - b. a pasture, with Trifolium, Ononis, formation with a very tilted terrain. Medicago, Althea, Polygonum species, mixed with - e. weeds and bushes, situated along the grass. road between Remetea and Costesti localities. 2. Moldoveneşti, locality situated at the 6. Hădăreni, localitaty situated on the left contact between Trascău Mountains and Turzii De- side of Arieş river, having an extended pasture: pression with Măhăceni Plateau. We undertook re- - a. a pasture, with Trifolium pratense, Eu- searches in the forest nearby Moldoveneşti locality phorbia sp, Ononis spinosa, Artemisia sp mixed and in a lawn in the proximity of the forest. with some herbs. - a. a Carpino-Fagetum association, forest - b. weeds at the road margins, with Artemi- dominated by Carpinus betulus and Fagus silvatica, sia sp. and Lycopus europaeus as representatives. having also: Acer campestre, Corylus avellana, Bet- ula pendula and a herbous vegetation better repre- 7. Gligoreşti, localitaty situated on the left sented, mostly along a small stream across the for- side of Arieş, in the river meadow: est, with Mentha sp., Trifolium pratense, Medicago - a. a Salicetum association dominated by sp., Urtica dioica, Equisetum arvense, Carduus Salix caprea; spinosus, Carduus echinatus, and any grass. - b. a hay-land, hygrophilous area, with - b. a hay-land, differeent grass, mixed with Juncus, Typha, Trifolium and Ononis, having also Trifolium pratense, Lotus corniculatus, Coronilla bushes of Salix caprea. varia şi Rubus caesius, etc.. 8. Gura Arieşului, localitaty situated to the Arieş river mouth, having a meadow in common 3. Mărtineşti, locality situated on Racilor with Mureş river , at aproximate 200 m. altitude: Valley, at aproximately 4 km down-stream of Vâl- - a. a Salici-Populetum association, in cele locality, in the valley meadow. which species of Salix and Populus are mixed with - a. a lown, with Trifolium repens, as repre- Alnus glutinosa, Fraxinus excelsior, Rosa cnina, sentative, mixed with any other herbs and weeds, Corylus avellana, Crataegus monogyna etc., the situated in the proximity of the pools here present; herbous layer being dominated mostly by species - b. an apple orchard, with grassy vegeta- of Trifolium, Ononis, Centaurea, Typha, Urtica, tion dominated by different herbs mixed with Tri- Coronilla , Plantago and Matricaria. folium pratense, T. repens, Coronilla varia, Medi- - b. a hay-land, (Festuceto-Agrostietum as- cago, Cirsium etc.. sociation), on the right side of Arieş river, in the meadow area, dominated by: Agrostis tenuis, A. 4. Luna, localitaty in wich we undertook re- stolonifera, Festuca rubra, F. pratensis etc., and searches in any ecosystems situated on tne right side also Caltha palustris. of Arieş river, in the area of river meadow: - c. weeds, dominated by species of: Arte- - a. an Alneto-Salicetum association, domi- misia, Matricaria, Trifolium, Linaria, Verbascum, nanted by Salix and Alnus species with a grassy rug Raphanus, Echium, Coronilla, Equisetum, Urtica , of different herbs mixed with Trifolium sp., Urtica Lycopus etc. dioica, Coronilla varia, etc. - b. a hay-land, situated nearby the up men- The material was collected, in the period tioned association, containing different grass and 2002-2004, by sampling with an insect net in a Trifolium pratense, Medicago sp., Coronilla varia, cuantum of 50 sweeps per sample. Ocazionally Ononis spinosa, Plantago lanceolata, and some were made also colections directly by hand. Caught bushes of Sambucus ebulum; insects were kept dry and identified in the labora- - c. weeds and bushes, with Artemisia, Ma- tory, using different literature (Mohr, 1966; Panin, tricaria, Trifolium, Coronilla, Verbascum and other 1951; Kaszab 1962-1971; Kippenberg & Doberl, genera . 1994; Schaufuss, 1915; Reitter, 1914; Rozner, 44 1996; Warchalowski, 1993). leaf beetle species (Chrysomelidae, Coleoptera) classified in 31 de genera, and 7 subfamilies Results and discussion We conclude therefore that the biodiversity of the group is enough great also in the low basin of the We present below, Table 1, the taxonomi- Arieş river, mentioning also that the protected areas cal list of the leaf beetle species identified in the of the zone (Cheile Turzii, Cheile Turului), were not low Arieş river basin, mentioning also the number included in the present study, leaf beetle situation in of captured individuals in each place, the relative these areas being previously published. Taking into abundance, and the places and ecosystems in which account also these researches, it result that the leaf the insects were captured. beetle biodiversity of the low Aries river basin, on From the collected material we identified 106 the whole, is more rich.

Table 1 Leaf beetles from the low Arieş river basin

Capture Crt. Nr. Abund Subfamily/ Species place, nr. ind. % ecosyst. I. Criocerinae Latreille 1807 3 0.51 4.b. 1. Oulema (Oulema) melanopus (Linnaeus, 1758) 1 0.17 5.b. 2. Oulema (Haspidolema) galleciana (Heyden, 1870) 1 0.17 2.a. II. Clytrinae Kirby 1837 3. Labidostomis lucida (Germar, 1823) 6 1.02 1.c. 13 2.21 2.b.

11 1.87 2.a. 4 Labidostomis longimana (Linnaeus, 1761) 3 0.51 3.b. 2 0.34 4.b.. 1 0.17 5.a. 3 0.51 1.b. 5 Clytra laeviscula Ratzenburg,1837 1 0.17 4.b. 4 0.68 7.a. 6 Clytra appendicina Lacordaire, 1848 3 0.51 1.a. 1 0.17 1.d. 7 Smaragdina aurita (Linnaeus, 1767) 1 0.17 2.b. 8 Smaragdina flavicollis (Charpentier, 1825) 1 0.17 4.a. 9 Smaragdina affinis (Illiger, 1794) 1 0.17 8.a. 10 Smaragdina xanthaspis (Germar, 1824) 1 0.17 1.b. 11 Smaragdina salicina (Scopoli, 1763) 3 0.51 1.b. 12 Coptocephala unifasciata (Scopoli, 1763) 1 0.17 1.c. III. Cryptocephalinae Gyllenhal, 1813 1 0.17 1.e. 13 Pachybrachys sinuatus Mulsant et Rey, 1859 1 0.17 4.c. 1 0.17 2.b. 14 Cryptocephalus (Cryptocephalus) violaceus Laicharting, 1781 2 0.34 1.e. 15 Cryptocephalus (Cryptocephalus) bipunctatus (Linnaeus, 1758) 4 0.68 2.b. 4 0.68 1.c.. 16 Cryptocephalus (Cryptocephalus) hipochoeridis (Linnaeus, 1758) 2 0.34 2.a.. 1 0.17 3.b. 4 0.68 1.c. 17 Cryptocephalus (Cryptocephalus) sericeus (Linnaeus, 1758) 4 0.68 1.e. 4 0.68 2.b. 1 0.17 2.b. 18 Cryptocephalus (Cryptocephalus) moraei (Linnaeus, 1758) 2 0.34 1.d. 4 0.68 1.c. 19 Cryptocephalus (Cryptocephalus) octopunctatus (Scopoli, 1763) 1 0.17 1.b. 20 Cryptocephalus (Cryptocephalus) flavipes Fabricius, 1781 1 0.17 1.d. 45 Capture Crt. Nr. Abund Subfamily/ Species place, nr. ind. % ecosyst. 21 Cryptocephalus (Cryptocephalus) vittatus Fabricius, 1775 2 0.34 1.c. 22 Cryptocephalus (Cryptocephalus) quadriguttatus Richter, 1820 1 0.17 5.a. 1 0.17 4.b. 23 Cryptocephalus (Cryptocephalus) octacosmus Bedel, 1891 1 0.17 8.b. 24 Cryptocephalus (Burlinius) fulvus Goeze, 1777 2 0.34 1.c. 1 0.17 1.d. 25 Cryptocephalus (Burlinius) vittula Suffrian, 1848 3 0.51 5.a. 1 0.17 1.c. 1 0.17 3.a. 26 Cryptocephalus (Burlinius) connexus Olivier, 1808 1 0.17 5.b. 1 0.17 7.b. 27 Cryptocephalus (Burlinius) ocellatus Drapiez, 1819 2 0.34 4.a. IV. Chrysomelinae Latreille, 1802 28 Chrysolina (Chrysolina) staphylea Linnaeus, 1758 1 0.17 2.b. 15 2.55 1.a. 3 0.51 2.a. 29 Chrysolina (Menthastriella) herbacea (Duftschmid, 1825) 2 0.34 4.a. 2 0.34 5.a. 5 0.85 1.b. 2 0.34 4.a. 30 Chrysolina (Fastuolina) fastuosa (Scopoli, 1763) 5 0.85 5.a. 3 0.51 6.b. 31 Chrysolina (Erythrochrysa) polita (Linnaeus, 1758) 3 0.51 1.b. 32 Chrysolina (Ovostoma) olivieri (Bedel, 1892) 2 0.34 1.a.. 33 Chrysolina (Sphaeromela) varians Schaller, 1783 1 0.17 1.a.. 34 Chrysolina (Colaphosoma) sturmi (Westhoff, 1882) 1 0.17 1.a. 35 Oreina (Oreina) liturata (Scopoli, 1763) 4 0.68 5.a. 36 Oreina (Allorina) caerulea (Olivier, 1790) 2 0.34 1.c. 1 0.17 5.b. 1 0.17 5.a. 37 Colaphus sophiae (Schaller, 1783) 2 0.34 6.b. 1 0.17 8.a. 1 0.17 1.e. 38 Gastrophysa polygoni (Linnaeus, 1758) 2 0.34 4.c. 1 0.17 5.b. 39 Gastrophysa viridula (De Geer, 1775) 3 0.51 5.b. 1 0.17 1.b. 5 0.85 4.a. 40 Plagiodera versicolora (Laicharting, 1781) 6 1.02 5.a. 3 0.51 6.b. 41 Linaeidea (Linaeidea) aenea (Linnaeus, 1758) 1 0.17 1.e. 1 0.17 1.b. 42 Chrysomela (Chrysomela) populi (Linnaeus, 1758) 2 0.34 5.a. 43 Chrysomela (Strikerus) vigintipunctata (Scopoli, 1763) 2 0.34 6.b. 44 Gonioctena (Gonioctena) linnaeana (Schrank, 1781) 4 0.68 6.b. 10 1.70 1.b. 45 Phratora (Phratora) vittelinae (Linnaeus, 1758) 2 0.34 8.a. 46 Phratora (Phratora) tibialis (Suffrian, 1851) 1 0.17 8.a. 2 0.34 7.a. 47 Phratora (Chaeroceta) vulgatissima (Linnaeus, 1758) 2 0.34 8.a. V. Galerucinae Latreille, 1802 27 4.59 4.b. 48 Galerucella (Neogalerucella) calmariensis (Linnaeus, 1767) 10 1.70 8.a. 49 Galerucella (Neogalerucella) pusilla (Duftschmid, 1825) 1 0.17 5.a. 14 2.38 4.a. 50 Galerucella (Neogalerucella) lineola (Fabricius, 1781) 3 0.51 6.b. 51 Galeruca (Galeruca) tanaceti (Linnaeus, 1758) 2 0.34 2.a. 52 Galeruca (Emarhopa) rufa (Germar, 1824) 1 0.17 5.a. 46 Capture Crt. Nr. Abund Subfamily/ Species place, nr. ind. % ecosyst. VI. Alticinae Kutschera, 1859 53 Phyllotreta armoraciae (Koch, 1803) 4 0.68 1.d. 2 0.34 4.b.. 2 0.34 5.b. 54 Phyllotreta undulata (Kutschera, 1860) 2 0.34 6.a. 2 0.34 8.b. 1 0.17 3.a. 55 Phyllotreta vittula (Redtenbacher, 1849) 1 0.17 4.b. 1 0.17 5.b. 1 0.17 4.c.. 1 0.17 6.b. 56 Phyllotreta nemorum Linnaeus, 1758 1 0.17 7.b. 1 0.17 8.c.. 2 0.34 4.c. 4 0.68 5.b. 57 Phyllotreta cruciferae Goeze, 1777 2 0.34 6.b. 1 0.17 8.c. 1 0.17 4.c. 58 Phyllotreta atra (Fabricius, 1775) 2 0.34 5.b.. 1 0.17 8.b. 15 2.55 4.c. 59 Phyllotreta nigripes (Fabricius, 1775) 9 1.53 5.b. 60 Phyllotreta gengelbaueri Heikertinger, 1909 2 0.34 4.c. 0.17 61 Phyllotreta christinae Heikertinger, 1941 1 8.b. 37 6.33 1.c.. 3 0.51 1.d. 3 0.51 1.a. 62 Aphthona lacertosa (Rosenhauer, 1847) 3 0.51 2.b. 16 2.72 4.b. 1 0.17 6.a. 63 Aphthona violacea (Koch, 1083) 1 0.17 2.b. 2 0.34 1.a. 64 Longitarsus (Longitarsus) jacobeae (Waterhouse, 1858) 2 0.34 2.a. 2 0.34 1.a. 65 Longitarsus (Longitarsus) lycopi (Foudras, 1860) 1 0.17 3.a. 66 Longitarsus (Longitarsus) pratensis (Panzer, 1794) 1 0.17 1.c. 1 0.17 3.a.. 1 0.17 4.b.. 67 Longitarsus (Longitarsus) foudrasi Weise, 1893 1 0.17 5.b.. 1 0.17 7.b. 3 0.51 3.b. 68 Longitarsus (Longitarsus) nigrofasciatus (Goeze, 1777) 2 0.34 5.b. 3 0.51 3.b. 2 0.34 4.c. 69 Longitarsus (Longitarsus) brunnaeus (Duftschmid, 1825) 4 0.68 5.b. 1 0.17 6.a. 4 0.68 7.b. 70 Longitarsus (Longitarsus) pellucidus (Foudras, 1860) 4 0.68 4.a. 3 0.51 7.b. 71 Longitarsus (Longitarsus) longipennis (Kutschera, 1863) 2 0.34 8.a. 72 Longitarsus (Longitarsus) longiseta Weise, 1888 1 0.17 4.a.

47 Capture Crt. Nr. Abund Subfamily/ Species place, nr. ind. % ecosyst. 1 0.17 3.a. 3 0.51 4.c. 73 Longitarsus (Longitarsus) melanocephalus (DeGeer, 1775) 1 0.17 4.b. 1 0.17 5.a. 74 Longitarsus (Longitarsus) scutellaris (Mulsant et Rey, 1874) 1 0.17 6.a. 75 Longitarsus (Longitarsus) membranaceus (Foudras, 1860) 3 0.51 6.a. 76 Longitarsus (Longitarsus) atricillus (Linnaeus, 1761) 1 0.17 2.b. 77 Longitarsus (Longitarsus) echii (Koch, 1803) 2 0.34 5.b. 78 Longitarsus (Longitarsus) tabidus (Fabricius, 1775) 1 0.17 5.b. 79 Longitarsus (Longitarsus) nigerrimus (Gyllenhal, 1827) 2 0.34 8.c 3 0.51 1.c. 3 0.51 1.d. 80 Altica oleracea (Linnaeus, 1758) 1 0.17 3.a.. 3 0.51 4.a. 1 0.17 8.a. 81 Batophilla fallax Weise, 1888 4 0.68 1.a. 7 1.19 1.c. 82 Asiorestia ferruginea (Scopoli, 1763) 6 1.02 5.b. 2 0.34 6.a. 83 Asiorestia transsylvanica (Fuss,1864) 1 0.17 1.a. 1 0.17 2.b. 1 0.17 4.b.. 84 Asiorestia transversa (Marsham, 1802) 7 1.19 5.a.. 2 0.34 7.b. 28 4.78 1.b. 85 Crepidodera aurata (Marsham, 1802) 1 0.17 6.b. 6 1.02 7.a. 2 0.34 4.a. 2 0.34 5.a. 86 Crepidodera plutus (Latreille, 1804) 2 0.34 6.b. 1 0.17 8.a. 2 0.34 5.a.. 87 Podagrica fuscicornis (Linnaeus, 1767) 1 0.17 7.b. 1 0.17 1.b. 88 Chaetocnema (Tlanoma) tibialis (Illiger, 1807) 2 0.34 5.a.. 2 0.34 8.a. 1 0.17 3.a. 89 Chaetocnema (Tlanoma) heikertingeri Ljubichev, 1963 2 0.34 7.b. 1 0.17 8.c. 90 Chaetocnema (Tlanoma) semicoerulea (Koch, 1803) 12 2.04 4.b. 1 0.17 1.a. 91 Chaetocnema (Chaetocnema) hortensis (Geoffroy, 1785) 4 0.68 4.b. 1 0.17 2.b. 1 0.17 3.a. 6 1.02 4.b. 92 Chaetocnema (Chaetocnema) arenacea (Allard, 1869) 7 1.19 5.b. 2 0.34 7.b. 1 0.17 7.b.. 1 0.17 3.a.. 93 Chaetocnema (Chaetocnema) confusa (Boheman, 1851) 1 0.17 4.b.. 94 Dibolia (Eudibolia) schillingi (Letzner, 1847) 3 0.51 1.e.. 2 0.34 5.a.. 95 Psylliodes (Psylliodes) calcomera (Illiger, 1807) 1 0.17 8.a. 96 Psylliodes (Psylliodes) picina (Marsham, 1802) 1 0.17 3.a. VII. Cassidinae Gyllenhal 1813

48 Capture Crt. Nr. Abund Subfamily/ Species place, nr. ind. % ecosyst. 1 0.17 3.a. 97 Hypocassida subferruginea (Schrank, 1776) 1 0.17 4.b.. 1 0.17 1.e. 98 Cassida (Cassida) lineola Creuzer, 1799 1 0.17 2.a. 99 Cassida (Cassida) denticollis Suffrian, 1844 1 0.17 1.c. 1 0.17 1.a. 100 Cassida (Cassida) vibex Linnaeus, 1767 1 0.17 3.b. 101 Cassida (Cassida) nebulosa Linnaeus, 1758 1 0.17 5.b. 1 0.17 4.b. 102 Cassida (Cassida) rubiginosa O.F. Muller, 1776 1 0.17 4.c. 4 0.68 4.b. 103 Cassida (Cassida) pannonica Suffrian, 1844 1 0.17 6.a. 1 0.17 8.c. 104 Cassida (Cassida) berolinensis Suffrian, 1844 1 0.17 2.b. 105 Cassida (Cassida) prassina Illiger, 1798 2 0.34 5.b. 106 Cassida (Cassida) seladonia Gyllenhal, 1827 1 0.17 4.c.

Note: All of the indicatories in the last collumn correspond to the same indicatories, concerning the points of capture and habitats, mentioned in „material and methods”. Abbreviations: Crt.nr. = curent number, Nr.ind.= number of captured individuals., Abund.% = percentual relative abundance, ecosyst.= ecosystem,

Fig. 1. Diagram of the number of leaf- beetle species in different subfamilies, in the low Arieş river basin.

49 Fig. 2. Diagram of the numer of leaf-beetle species in different genera, in the low Arieş river basin.

The numerical distribution of the leaf beetles (Alticinae) with 6 species. species relative to subfamilies and genera are given Important mention is also the presence of in Fig. 1 and Fig. 2. some rare or very rare species for Transylvanian fa- It is obvious that the best represented sub- una, and even for the country`s fauna , from which families are Alticinae, with 44 species, Chrysomeli- we give emphasis to: Labidostomis lucida, Clytra nae, with 22 species and Cryptocephalinae, with appendicina, Smaragdina flavicollis, Smaragdi- 15 species. Intermediate positions are occupied by na xanthaspis, Cryptocephalus (Cryptocephalus) Clytrinae and Cassidinae, each with 10 species, and octopunctatus, Cryptocephalus (Cryptocephalus) to the opposite side are situated Galerucinae and quadriguttatus, Chrysolina (Chrysolina) staphy- Criocerinae, with 5 and 2 species, respectively. lea, Chrysolina (Colaphosoma) sturmi, Gonioctena We explain these results by the dryness of a (Gonioctena) linnaeana, Phratora (Phratora) tibia- great part of the terrains of the hills and terraces, lis, Galeruca (Emarhopa) rufa, Phyllotreta gengel- this favoring many of Alticinae and Cryptocephali- baueri, Phyllotreta christinae, Aphthona violacea, nae species, but also by the existence of many hy- Longitarsus (Longitatsus) longiseta, Longitarsus grophile areas, in the meadows of the Arieş river (Longitarsus) nigerrimus, Longitarsus (Longitar- and the tributary vallies, these areas favoring the sus) atricillus, Asiorestia transsylvanica, Dibolia spread of Chrysomelinae and Cassidinae species. (Eudibolia) scillingi, Psylliodes (Psylliodes) pici- Concerning the genera, the majority of these na, Cassida (Cassida) seladonia, etc.. All of these were represented by 1-3 species. Genera with a considerations constitute so many arguments for an greater biodiversity were: Longitarsus (Alticinae) attentively monitoring of the natural environment of with 16 species, Cryptocephalus (Cryptocephalinae) the zone, with the study of the opportunity to pro- with 14 species, Cassida (Cassidinae) and Phyl- pose new protected areas, or of any more extended lotreta (Alticinae), each with 9 species. Intermedi- buffer zones, for the existing protected areas. ate positions are occupied, by the genera Chrysolina (Chrysomelinae) with 7 species and Chaetocnema 50 REFERENCES: beetle fauna (Coleoptera: Chrysomelidae) in “Someşului Cald Gorges” area, Romania., Bul. Crişan A. 1993a. Date asupra familiei Chrysomelidae inf. Soc. lepid. rom., 10 (1-4): 131-135. 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Alexandru Crişan, Lucian Teodor Universitarea „Babeş-Bolyai” Cluj-Napoca Facultatea de Biologie şi Geologie Catedra de Taxonomie şi Ecologie Str. Clinicilor 5-7, RO – 400006, Cluj-Napoca e-mail: [email protected]

Received: 4.03.2005 Accepted: 9.03.2005 Printed: 28.12.2005